preupgrade F10

[Gerry Reno]

Jeremy Katz wrote:
> On Friday, March 20 2009, Gerry Reno said:
>   
>> Jesse Keating wrote:
>>     
>>> On Fri, 2009-03-20 at 12:03 -0400, Gerry Reno wrote:
>>>       
>>>> The need to make sure that you update rpm or yum before you do 'yum  
>>>> update' has happened before and I'm sure this isn't the last time 
>>>> that it will happen either.  It just makes sense for a packager to 
>>>> see if there is an update to itself first.  Update itself and THEN do 
>>>> the updates for everything else.
>>>>         
>>> That's your opinion.  The opinion of the people writing the update tools
>>> and preparing the repos and living through such "needs" and really
>>> understanding what is actually going on don't share that opinion.
>>>       
>> What is the matter with yum doing something like this?
>>
>> if updated yum or updated rpm is available:
>>    if updated yum is available:
>>        update yum
>>        yum_is_new = true
>>    if updated rpm is available:
>>        update rpm
>>    if yum_is_new:
>>        sys.execv("/usr/bin/yum", sys.argv)  # replace current process  
>> with updated yum
>>     
>
> New yum may depend on new python, new glibc, etc and thus 'update yum'
> may essentially be 'update everything'
>
> Jeremy
>
>   
Ok, understand that. So an update of yum has to be left until the very 
last moment just before other things that require it.

So maybe change the first line to:

if found package that requires new yum or rpm and updated yum or updated 
rpm is available:



That way yum wouldn't update yum/rpm unless something actually required 
the updated yum/rpm.

My interest was just to make the process as simple as possible.



Regards,
Gerry

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